Rotary coaxial assembly

• US 4,326,769 A
• Filed: 04/21/1980
• Issued: 04/27/1982
• Est. Priority Date: 04/21/1980
• Status: Expired due to Term

• Current Assignee: Litton Systems Incorporated
• Original Assignee: Litton Systems Incorporated
• Inventors: Dorsey, Glenn F., Hassall, James C. II
• Primary Examiner(s): DESMOND, EUGENE
• Application Number:
  US06/142,246
• Time in Patent Office: 736 Days
• Field of Search: 339/177 R, 339/177 E, 339/8 PB, 339/8 P, 339/9 RY, 339/256 RT
• US Class Current: 439/21
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/40 specially adapted for high frequency
• CPC Class Codes: H01R 24/44 comprising impedance matching means
• CPC Class Codes: H01R 35/00 Flexible or turnable line connectors , i.e. the rotation angle being limited rotary current collectors, distributors H01R39/00

Abstract

A rotary coaxial assembly comprises an external and an internal socket which is lined with a conductive louvered band and which mates with an external and an internal pin. The fit between the sockets and the pins are such that a first coaxial cable which is attached to the external and internal sockets may rotate as a unit with respect to a second coaxial cable which is attached to the external and the internal pins.

Claims

1. In a miniature rotary coaxial assembly for electrically coupling two coaxial leads one to the other, a combination comprising:

a stator cover and a rotary housing,

an external pin and a smaller diameter internal pin rigidly fixed to the stator cover,

stator insulation means for electrically insulating the external pin from the internal pin and for maintaining a coaxial relationship therebetween,

stator adaptor means for electrically coupling the external lead of a first coaxial cable to the external pin and means for electrically coupling the internal lead of said first coaxial cable of the internal pin,

an external socket and a smaller internal socket rigidly fixed to the rotary housing,

rotor insulation means for electrically insulating the external socket from the internal socket and for maintaining a coaxial relationship therebetween,

rotor adaptor means for electrically coupling the external lead of a second coaxial cable to the external socket and means for electrically coupling the internal lead of said second coaxial cable to the internal socket,

a first conductive band of elongated louvered contacts lining the external socket and electrically coupling said external socket to the external lead,

a second conductive band of elongated louvered contacts lining the internal socket and electrically coupling said internal socket to the internal pin,

wherein the fit between the first conductive band and the external pin and between the second conductive band and the internal pin allows relative rotational motion therebetween and provides a low noise sliding electrical contact, whereby the rotary housing in the second coaxial cable and the external and internal sockets rotate freely as a unit with respect to the stator cover, the first coaxial cable, and the external and internal pins.